Function submit

packages/forms/signals/src/api/structure.ts:428–476

(
  form: FieldTree<TModel>,
  options?: FormSubmitOptions<unknown, TModel> | FormSubmitOptions<unknown, TModel>['action'],
)

  action: NoInfer<FormSubmitOptions<unknown, TModel>['action']>,
): Promise<boolean>;
export async function submit<TModel>(
  form: FieldTree<TModel>,
  options?: FormSubmitOptions<unknown, TModel> | FormSubmitOptions<unknown, TModel>['action'],
): Promise<boolean> {
  const node = untracked(form) as FieldState<unknown> as FieldNode;

  if (untracked(node.submitState.submitting)) {
    return false;
  }

  const field = options === undefined ? node.structure.root.fieldProxy : form;
  const detail = {root: node.structure.root.fieldProxy, submitted: form};

  // Normalize options.
  options =
    typeof options === 'function'
      ? {action: options}
      : (options ?? node.structure.fieldManager.submitOptions);

  // Verify that an action was provided.
  const action = options?.action as FormSubmitOptions<unknown, unknown>['action'];
  if (!action) {
    throw new RuntimeError(
      RuntimeErrorCode.MISSING_SUBMIT_ACTION,
      (typeof ngDevMode === 'undefined' || ngDevMode) &&
        'Cannot submit form with no submit action. Specify the action when creating the form, or as an additional argument to `submit()`.',
    );
  }

  node.markAsTouched();

  const onInvalid = options?.onInvalid as FormSubmitOptions<unknown, unknown>['onInvalid'];
  const shouldRun = shouldRunAction(node, options?.ignoreValidators);

  // Run the action (or alternatively the `onInvalid` callback)
  try {
    if (shouldRun) {
      node.submitState.selfSubmitting.set(true);
      const errors = await untracked(() => action?.(field, detail));
      errors && setSubmissionErrors(node, errors);
      return !errors || (isArray(errors) && errors.length === 0);
    } else {
      untracked(() => onInvalid?.(field, detail));
    }
    return false;
  } finally {
    node.submitState.selfSubmitting.set(false);
  }
}

/**
 * Creates a `Schema` that adds logic rules to a form.